Effect of the Diesel, Inhibitor, and CO2 Additions on the Corrosion Performance of 1018 Carbon Steel in 3% NaCl Solution
Por:
Porcayo-Calderon J., Casales-Diaz M., Rivera-Grau L.M., Ortega-Toledo D.M., Ascencio-Gutierrez J.A., Martinez-Gomez L.
Publicada:
1 ene 2014
Categoría:
Chemistry (miscellaneous)
Resumen:
In order to determine the diesel contribution in the coadsorption
process of the oil-soluble inhibitors, electrochemical impedance
spectroscopy measurements have been carried out to study the performance
of oil-soluble inhibitors in both presence and absence of diesel and
CO2. The results showed that the presence of the oil phase provides some
protection to the steel because the water-soluble fractions are capable
of being adsorbed on the steel surface thereby reducing the corrosion
rate. The oily phase does not contribute to the adsorption process of
the inhibitor because the inhibitor is absorbed into the water-soluble
fractions. The oil-soluble inhibitors are effective only when the
solution is saturated with CO2. CO2 saturation causes a decrease in the
pH of the solution causing both an increase of the inhibitor solubility
and a better dispersion of the inhibitor into the electrolyte.
Filiaciones:
Porcayo-Calderon J.:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Casales-Diaz M.:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Rivera-Grau L.M.:
Universidad Autonoma del Estado de Morelos, CIICAp, Avenida Universidad 1001, Cuernavaca, MOR 62209, Mexico
Ortega-Toledo D.M.:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Ascencio-Gutierrez J.A.:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
Martinez-Gomez L.:
Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62210, Morelos, Mexico
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